There are 2 definitions of UNISON in English:

UNISON

Line breaks: UNI¦SON
Pronunciation: /ˈjuːnɪs(ə)n
 
/
  • (In the UK) a trade union formed in 1993 and representing employees in the health service and public sector.

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There are 2 definitions of UNISON in English:

unison

Line breaks: uni¦son
Pronunciation: /ˈjuːnɪs(ə)n
 
/

noun

[mass noun]
  • 1Simultaneous performance or utterance of action or speech: ‘Yes, sir,’ said the girls in unison
    More example sentences
    • They punched the air and shouted in unison to the speeches of their leaders.
    • The wrists didn't move much but his students simultaneously snapped skyward in unison.
    • The two supporting lengths of parallel pipe swerve in unison from the back until the top pipe rears up and curves back over the sails that it also apparently is bracing.
    Synonyms
    simultaneously, at (one and) the same time, (all) at once, at the same moment, (all) together, as one, in concert, in chorus
  • 2 Music Coincidence in pitch of sounds or notes: the flutes play in unison with the violas
    More example sentences
    • Note that the cymbals are played in unison with four other types of instruments.
    • Two voices chorused as the sound of two hands hit in perfect unison.
    • The horn section of the RAAF Central Band blow in unison during the first concert of the Tour de Force II Tour.
  • 2.1 [count noun] A combination of notes, voices, or instruments at the same pitch or (especially when singing) in octaves: good unisons are formed by flutes, oboes, and clarinets
    More example sentences
    • With the Scherzo we are back to bare unisons and octaves, though now assertive, but the G with which the music starts makes the key unambiguously clear as C major.
    • A remarkable passage in unisons and octaves follows which leads to a fugue bristling with cross-rhythms.
    • Also, look for any octave doublings or unisons, circling or otherwise marking them between the staves.

adjective

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  • Performed in unison: unison congregational singing
    More example sentences
    • As a child, the only music I experienced was unison hymn singing with no formal leader, accompanied by an enthusiastic piano.
    • The finale is for full orchestra with unison horns and trumpets rousingly playing Purcell's theme at the end.
    • The asymmetric rhythms of their unison duet invigorated the music's persistence.

Derivatives

unisonous

Pronunciation: /jʊˈnɪs(ə)nəs/
adjective
More example sentences
  • To this day unisonous singing has survived in Hevsureti, Tusheti and other mountainous areas.
  • At least one type of signal in the set of signals is synchronously averaged to provide an unisonous output.
  • He urged the whole nation to promote a unisonous regional development in the country in the next five years.

Origin

late Middle English (in sense 2 of the noun): from Old French, or from late Latin unisonus, from Latin uni- 'one' + sonus 'sound'.

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